Hi laxman,

Admission in B.Tech Lateral Entry programmes offered by engineering institutes is done on the basis of entrance exams. Different institutes consider different entrance exams. Most of the regional government and private colleges take admission on the basis of state entrance exams.

Some deemed universities and autonomous institutes might conduct their own entrance exam for admission to B.Tech LE programmes offered by them.

You can refer this link provided below -

https://engineering.careers360.com/articles/b-tech-after-polytechnic

Hope this helps!

All the best.